package org.smallreunion.model;

import java.io.Serializable;

import net.arnx.jsonic.JSON;

import org.slim3.datastore.Attribute;
import org.slim3.datastore.Datastore;
import org.slim3.datastore.Model;
import org.smallreunion.model.constract.JSONStoreType;

import com.google.appengine.api.datastore.Key;
import com.google.appengine.api.datastore.Text;

/**
 * JSON格納モデル
 *
 * @author Sinmetal
 *
 */
@Model(schemaVersion = 1)
public class JSONStore implements Serializable {

    private static final long serialVersionUID = 1L;

    @Attribute(primaryKey = true)
    private Key key;

    @Attribute(version = true)
    private Long version;

    private Text content;

    /**
     * Returns the key.
     *
     * @return the key
     */
    public Key getKey() {
        return key;
    }

    /**
     * Sets the key.
     *
     * @param key
     *            the key
     */
    public void setKey(Key key) {
        this.key = key;
    }

    /**
     * Returns the version.
     *
     * @return the version
     */
    public Long getVersion() {
        return version;
    }

    /**
     * Sets the version.
     *
     * @param version
     *            the version
     */
    public void setVersion(Long version) {
        this.version = version;
    }

    /**
     * @return content
     */
    public Text getContent() {
        return content;
    }

    /**
     * @param content セットする content
     */
    public void setContent(Text content) {
        this.content = content;
    }

    /**
     * Key生成
     *
     * @param name
     * @return
     */
    public static Key createKey(JSONStoreType name) {
        return Datastore.createKey(JSONStore.class, name.getValue());
    }

    /**
     * インスタンス生成
     *
     * @param pojo
     * @return
     */
    public static JSONStore getInstance(Object pojo) {
        JSONStore instance = new JSONStore();
        String json = JSON.encode(pojo);
        Text text = new Text(json);
        instance.setContent(text);
        return instance;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((key == null) ? 0 : key.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        JSONStore other = (JSONStore) obj;
        if (key == null) {
            if (other.key != null) {
                return false;
            }
        } else if (!key.equals(other.key)) {
            return false;
        }
        return true;
    }
}
